Question details

800xA Modbus TCP to Multiple Serial Slave Polling Optimization

I am working on a project which requires multi-drop read/write functionality. I am using PM861 controllerpairing within either 1 -4 CI867s. Depending on the number of loads. I have been tasked to optimize my pollling from the slaves threshold ranging from min(1) - max(81) nos. on each controller. May i know is there any tweaks that i may implement besides the conventional MBTCPconnect and MBTCPread function blocks? Presently, internal transactions, mean total time apprx. 1s. In real world application, the customer has specially mentioned read/write operations to be 600ms. Practically speaking, i am trying to meet while explaining the situation to the customer. I have exchanged pointers with my fellow colleagues, and one solution is to increase baud rate from present 19200 to higher throughputs. Besides this method, i am trying to explore other alternative, i am all ears to anyone who might possess some knowledge in the field thank you.